import axios from 'axios';

axios.defaults.timeout = 5000;
axios.defaults.baseURL ='http://dsshop.cc/mobile'; //填写域名

//http request 拦截器
axios.interceptors.request.use(
  config => {
    config.data = JSON.stringify(config.data);
    config.headers = {
      'Content-Type':'application/x-www-form-urlencoded'
    }
    return config;
  },
  error => {
    return Promise.reject(err);
  }
);

//响应拦截器即异常处理
axios.interceptors.response.use(response => {
    return response
}, err => {
    if (err && err.response) {
        switch (err.response.status) {
          case 400:
            err.message = '错误请求'
            break;
          case 401:
            err.message = '未授权，请重新登录'
            break;
          case 403:
            err.message = '拒绝访问'
            break;
          case 404:
            err.message = '请求错误,未找到该资源'
            break;
          case 405:
            err.message = '请求方法未允许'
            break;
          case 408:
            err.message = '请求超时'
            break;
          case 500:
            err.message = '服务器端出错'
            break;
          case 501:
            err.message = '网络未实现'
            break;
          case 502:
            err.message = '网络错误'
            break;
          case 503:
            err.message = '服务不可用'
            break;
          case 504:
            err.message = '网络超时'
            break;
          case 505:
            err.message = 'http版本不支持该请求'
            break;
          default:
            err.message = `连接错误${err.response.status}`
        }
      } else {
        err.message = "连接到服务器失败"
      }
    return Promise.resolve(err.response)
})


/**
 * 封装get方法
 * @param url
 * @param data
 * @returns {Promise}
 */

export function fetch(url,params={}){
  return new Promise((resolve,reject) => {
    axios.get(url,{
      params:params
    })
    .then(response => {
      resolve(response.data);
    })
    .catch(err => {
      reject(err)
    })
  })
}


/**
 * 封装post请求
 * @param url
 * @param data
 * @returns {Promise}
 */

 export function post(url,data = {}){
   return new Promise((resolve,reject) => {
     axios.post(url,data)
          .then(response => {
            resolve(response.data);
          },err => {
            reject(err)
          })
   })
 }

 /**
 * 封装patch请求
 * @param url
 * @param data
 * @returns {Promise}
 */

export function patch(url,data = {}){
  return new Promise((resolve,reject) => {
    axios.patch(url,data)
         .then(response => {
           resolve(response.data);
         },err => {
           reject(err)
         })
  })
}

 /**
 * 封装put请求
 * @param url
 * @param data
 * @returns {Promise}
 */

export function put(url,data = {}){
  return new Promise((resolve,reject) => {
    axios.put(url,data)
         .then(response => {
           resolve(response.data);
         },err => {
           reject(err)
         })
  })
}


export default axios

